Glycolysis

Question 1

What is glycolysis?

Answer 1

cells derive energy from the oxidation of nutrients such as glucose. This oxidation of glucose to pyruvate occurs through a series of steps called glycolysis.

Question 2

What happens after oxidation during glycolysis reaction?

Answer 2

The energy released during these oxidation reactions is used to form adenosine triphosphate (ATP), the energy currency of the cell.

Question 3

What is the initial steps in glycolysis?

Answer 3

The initial step of lycolysis are the additions of two phosphates to glucose molecules, at the expense of two molecules of ATP. The result is a 6-carbon sugar diphosphate molecule and 2 low energy adenosine diphosphate molecules or ADP.

Question 4

What happens right after the 6-carbon sugar diphophate molecule is produced?

Answer 4

The 6-carbon sugar diphophate molecule is then split into two 3-carbon molecules

Question 5

What happens right after the 3-carbon sugar phosphate is produced?

Answer 5

Each of the 3-carbon molecules is converted through a series of steps, to pyravate. During these reactions, electrons are transferred to the coenzyme NAD⁺ to form NADH and ATP is formed.

Under aerobic conditions, the pyruvate is further oxidized to yield more ATP and under anaerobic condistions, the pyruvate is converted into lactic acid.

Question 6

In glycolysis, what product is glucose is converted to?

Answer 6

pyruvate

Question 7

The NET result of a single glycolysis run is the formation of what?

Answer 7

2 NADH and 2 ATP

Question 8

Under anaerobic conditions, the end-product of glycolysis is converted to what?

Answer 8

lactic acid

Question 9

True or False? During glycolysis, a 6-carbon sugar diphosphate moleucle is split into two 3-carbon sugar phosphate molecules.

Answer 9

True

Question 10

True or False: Under aerobic conditions, the end-product of glycolysis is further reduced to yield more ATP.

Answer 10

False